One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,8)(3,4,7,6)(9,10)(11,12)(13,16)(14,15)(17,18)(19,20)(21,22)(23,24)(25,26,29,31)(27,32,30,28)(1,3)(2,6)(4,8)(5,7)(9,11,13,15)(10,14,16,12)(17,18,21,22)(19,20,23,24)(27,30)(28,32)(3,7)(4,6)(9,12,13,14)(10,15,16,11)(17,19,21,23)(18,20,22,24)(25,27,29,30)(26,28,31,32)(1,2)(3,4)(5,8)(6,7)(9,11)(10,12)(13,15)(14,16)(17,20,21,24)(18,19,22,23)(1,4)(2,7)(3,8)(5,6)(9,12)(10,15)(11,16)(13,14)(17,19)(18,20)(21,23)(22,24)(25,28)(26,30)(27,31)(29,32) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.